Troy-Bilt TB20CS 17-Inch 31cc 2-Cycle Gas-Powered Curved Shaft String Trimmer with Detachable Shaft 31cc, 2-cycle engine with performance-tuned ignition for more reliable starting EZ-Link coupler accepts interchangable TrimmerPlus attachments for the ultimate in versatility Adjustable D-handle for easy right- or left-handed use SpringAssist starting starts with a slow & steady pull, dramatically reducing pulling effort Non-CARB Compliant/Not For Sale In California